Base | Representation |
---|---|
bin | 1111001010101000… |
… | …1000100010010001 |
3 | 101111201112220020001 |
4 | 3302222020202101 |
5 | 31314202200111 |
6 | 1511550250001 |
7 | 202613021260 |
oct | 36252104221 |
9 | 11451486201 |
10 | 4071131281 |
11 | 17aa058208 |
12 | 9574b6901 |
13 | 4cb598129 |
14 | 2a898c5d7 |
15 | 18c6261c1 |
hex | f2a88891 |
4071131281 has 4 divisors (see below), whose sum is σ = 4652721472. Its totient is φ = 3489541092.
The previous prime is 4071131279. The next prime is 4071131291. The reversal of 4071131281 is 1821311704.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 4071131281 - 21 = 4071131279 is a prime.
It is a super-2 number, since 2×40711312812 = 33148219814273401922, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (4071131221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290795085 + ... + 290795098.
It is an arithmetic number, because the mean of its divisors is an integer number (1163180368).
Almost surely, 24071131281 is an apocalyptic number.
It is an amenable number.
4071131281 is a deficient number, since it is larger than the sum of its proper divisors (581590191).
4071131281 is an equidigital number, since it uses as much as digits as its factorization.
4071131281 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 581590190.
The product of its (nonzero) digits is 1344, while the sum is 28.
The square root of 4071131281 is about 63805.4173326999. The cubic root of 4071131281 is about 1596.7553099865.
Adding to 4071131281 its reverse (1821311704), we get a palindrome (5892442985).
The spelling of 4071131281 in words is "four billion, seventy-one million, one hundred thirty-one thousand, two hundred eighty-one".
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